baber/WOPTO huggingface dataset:
Patent GB-1233522-A (GB)
IPC: C21D8/06
Filed: 1969-01-15
Abstract: 1,233,522. Patenting steel rod. HUTTENWERK OBERHAUSEN A. G. June 15, 1969 [Feb. 15, 1968], No. 2352/69. Heading C7A. On leaving the mill the rod is so cooled that its cooling curve when plotted on T-T-T diagram intersects the austenite - ferrite transformation line within 10 seconds, and is then cooled in a fluidized bed at an average rate of at least 20 C. / second to a transformation temperature in the range 480 -580 C.; preferably the rod is then held at that temperature for about 10 seconds. The initial cooling may be carried out in a fluidized bed, and in either stage the rod may be treated while formed into overlapping turns on a conveyer. As exemplified a steel containing 0À66% C, 0À23% Si, 0À76% Mn, 0À019% P, and 0À029% S was rolled to 5À5 mm. at 1000C., and entered the reel at 800 C. where it was laid into turns on a conveyer; within 2 seconds of leaving the last stand of the mill the rod was cooled to 520 C. at an average of 43 C. /second, and was held at that temperature for 12 seconds.
Patent GB-1233998-A (GB)
IPC: D05B73/00
Filed: 1969-04-09
Abstract: 1,233,998. Sewing machines. HUSQVARNA VAPENFABRIKS A.B. 9 April, 1969 [10 April, 1968], No. 18145/69. Heading D1G. A zig-zag sewing machine has its work supporting surface 1 upwardly inclined relative to the horizontal in the direction of work feeding. As shown a rotary or oscillating hook 6 is provided on a driving shaft 8 which lies parallel to the surface to allow the hook to lie at the end of the shaft if there is any float in the shaft. A flap 3 is provided which gives access to the rotary hook. The machine may be of the free arm type the free arm being exposed either by lifting the machine from its base which provides complementary surfaces providing an effective surface as shown in Fig. 2 or by sliding the machine relative to its base. Alternatively a separate attachment may be provided to extend the free arm.
Patent GB-1238806-A (GB)
IPC: B66B13/12
Filed: 1969-07-04
Abstract: 1,238,806. Opening and closing lift doors. EXPRESS LIFT CO. Ltd. 22 May, 1970 [4 July, 1969], No. 33768/69. Heading B8L. A sliding door arrangement in a lift installation comprises a pair of elongated members 22, 23 forming a channel on the lift car co-operable at a langing with blocks 52 on the landing door arrangement so that both sets of doors may be operable by an electric motor 1 on the lift car 2, the members 22, 23 being resiliently mounted so that they may be overridden by the blocks 52 if the latter do not line up with the said channel. The leading edges of the blocks 52 and the members 22, 23 are tapered to facilitate the overriding engagement. The lift car door 9 is driven by the motor 1 through a rotatable arm 3, a resilient telescopic linkage 56 which permits lost motion between the arm 3 and the door 9 if the latter is obstructed, and the members 22, 23. The member 23 is mounted in parallelogram fashion on arms 35 and is movable through linkage 42, 43 operated by the arm 3, to reduce the channel size as the lift car doors begin to open, this causing displacement of pegs 51 on a pivoted plate 45 on the landing door 50, whereby the plate 45 is rotated and unlocked from the door frame 46, to facilitate opening of the landing door with the car door. During the second half of the car door opening and the first half of the car door closing movents, the arm 3 is locked solid with the linkage 5, 6 through a hook 19 and swivel 18 engagement controlled by a cam 21 on the arm 3 and a roller 20 on the hook 18.
Patent GB-1250384-A (GB)
IPC: B62D33/06
Filed: 1969-11-12
Abstract: 1,250,384. Tractor cabs. CATERPILLAR TRACTOR CO. 12 Nov., 1969 [22 Nov., 1968], No. 55397/69. Heading B7B.  A tractor cab 25 is supported from the chassis 16 by a member 12 having legs 18 provided with mounting flanges 22 and a transverse member 20 joining the upper ends of the legs 18, and by a further member 14 comprising brackets 26 also connected by a transverse member. The members 12 and 14 may have brackets 34, 50 to mount a tank 48.
Patent GB-1251093-A (GB)
IPC: C08G63/80
Filed: 1969-10-17
Abstract: 1,251,093. High molecular weight polyesters. FARBWERKE HOECHST A.G. 17 Oct., 1969 [23 Oct., 1968], No. 51123/69. Heading C3R. Polyesters (e.g. polyethylene terephthalate) of high molecular weight are obtained by crystallizing and drying a lower molecular weight amorphous polyester in a fluidized bed dryer by passing a hot inert gas through a charge of polyester granules at a rate which is insufficient to maintain fluidization and where the granules are kept uniformly dispersed by vibration, and thereafter subjecting the polyester to a solid phase condensation.
Patent GB-1264178-A (GB)
IPC: B60P1/64
Filed: 1969-03-13
Abstract: 1,264,178. Vehicles with removable bodies. J. ASTIE, and R. ASTIE. 13 March, 1969 [14 March, 1968; 28 Oct., 1968], No. 13280/69. Heading B8S. [Also in Division B7] A framework 21 which may be integral with or detachable from a vehicle chassis has an upper part 23 provided with apertures 25 to accommodate frusto-pyramidal hoppers. The floor may be perforated or solid and in an alternative construction the corners of the hoppers are located by tripod members of rod construction.
Patent GB-1290127-A (GB)
IPC: B23K35/362
Filed: 1971-06-29
Abstract: 1290127 Granulated submerged arc flux LINDE AG 29 June 1971 [1 July 1970] 30363/71 Heading C7M A granulated submerged arc flux made by adding an atomized liquid to dry powders and optionally roasting, in which the starting powder contains one or more slags from a submerged arc welding process. The starting powder may contain 100% slag or 20-50% slag with other flux additions. The slag particle size is preferably not more than 0À2 mm.
Patent GB-1311677-A (GB)
Title: Rotary cutter heads
IPC: B23B3/24
Filed: 1969-09-10
Abstract: 1311677 Rotary cutter heads JAMES FARMER NORTON & CO Ltd 20 Aug 1970 [10 Sept 1969] 44733/69 Heading B3T A rotary cutter head comprises at least three rollers 28 and at least three cutting tools 27 the groups of rollers and tools being located respectively on opposite sides of a plane X-X transverse to the cutter head and at right angles to the axis of rotation of the head. The rollers and tools are located in carriers 24 and are radially adjustable, the carriers being mounted between two annular end plates 21, 22 constituting the body 20 of the cutter head. The roller axes are parallel with the axis of the cutter head. The transverse plane may be located midway between the end plates.
Patent GB-1312405-A (GB)
Title: Printing apparatus
IPC: B41L47/46
Filed: 1971-07-21
Abstract: 1312405 Printing apparatus ENGLISH NUMBERING MACHINES Ltd 15 March 1972 [21 July 1971] 34201/71 Heading B6C A printing apparatus includes a print block 1, carried on a bed and bearing raised characters 2, and an impression means which comprises at least two impression members 7, which are movable in succession together over the block and preferably are rollers. The members 7 may be mounted on a carrier 6, and be made to contact the block 1 by a parallel-motion linkage, actuated by a rotating crank. Preferably the stroke of the carrier 6 while the rollers are in contact with the characters 2 is greater than the distance between adjacent rollers, and the rollers carry resilient sleeves. Alternatively the block 1 may be resiliently mounted, or incorporate springs or elastomeric blocks, or the bearings of the parallel-motion linkage may include resilient components.
Patent GB-1312459-A (GB)
Title: Apparatus for separating ribs from cut tobacco
IPC: A24C5/39
Filed: 1969-12-22
Abstract: 1312459 Winnowing tobacco HAUNIWERKE KORBER & CO KG 20 Nov 1970 [22 Dec 1969] 49301/70 Heading A2C An apparatus for separating rib portions from cut tobacco comprises a feeder for continuously supplying cut tobacco, projector means consisting of an endless travelling feed belt for projecting cut tobacco into a separating zone, rib collecting means arranged within the separating zone and a take-off conveyer for the leaf tobacco. The feeder comprises an apparatus for producing a homogeneous stream 2 of comminuted tobacco which is withdrawn continuously from a major tobacco supply store 1, in which a final definite smaller tobacco supply store 7 is produced the size of which is held approximately constant and from which the tobacco stream 2 is withdrawn, and tobacco is supplied to the final small tobacco supply store 7 from at least one preceding small supply store 11 the size of which is held approximately constant. Tobacco is supplied pneumatically to the store 1 from which it is fed by a spiked conveyer belt 18 under a rake roll 28 to the first supply store 11, the tobacco being removed from the belt 18 by a beater roll 26. The size of the store 11 is kept approximately constant by controlling the speed of the drive to the conveyer belt 18 in response to height variations detected by a light control device 29. The tobacco is forwarded from the store 11 on a constant speed conveyer 13 to two further small stores 9, 8 and the final store 7 in turn, the quantity of tobacco held in each store 11, 9, 8, 7 decreasing in the downstream direction, and the flow of tobacco from one store to the next being controlled by height adjustment of rake rolls 47, 46, 44 in response to level measurements of the stores 9, 8, 7 by light control devices 39, 38, 37. A final non-adjustable rake roll 35 is provided downstream of the final store 7, beyond which a beater roll 40 removes the tobacco from the conveyer 13 and deposits its on the conveyer belt 89.  Projector means. The belt 89 in conjunction with a rotating drum 90 projects the tobacco stream 2 into a separating zone A in which the tobacco ribs 2a follow an upper path to a worm 94 that removes them, and the rib-free tobacco fleece 2b follows a lower path to be distributed by rotating rectangular crosssection bars 91, 92, 93 onto a fleece belt 95 which forwards the fleece 2b to a continuous rod forming conveyer 99 in a duct 98. Control means. The motor 36 may have its speed changed from full speed to a low or zero speed, or may have its speed continuously varied, in response to signals from the control device 29. Similarly, the rake rolls 47, 46, 44 may be displaceable to a high or a low position by electromagnets 58, 57, 51, or may be adjustable in a plurality of steps by an electric motor, in response to signals from their respective control devices 39, 38, 37. The light control devices 29, 39, 38, 37 may be replaced by other known level detecting devices such as devices using supersonics, nuclear radiation or high frequency energy.
Patent GB-1316682-A (GB)
Title: Display device
IPC: G02B26/02
Filed: 1971-04-27
Abstract: 1316682 Optical apparatus KOLLSMAN INSTRUMENT CORP 27 April 1971 11652/71 Heading G2J [Also in Divisions Gl G4-6 and H4] A display device comprises a transparent body 20 having an optical boundary 21 capable of diffusing light, a plurality of opaque members 22 adjacent the body and means 23 for selectively moving the members into and out of contact with the boundary to produce light absorbtion and diffusion respectively. The body comprises a glass plate with an etched diffusing surface 21. Diffusion is prevented by moving a black compressible silicone rubber film into contact with the surface using a piezo-electric or magnetostrictive element 23. The film is moved about one wavelength, increasing pressure on film 22 increases light absorbtion and produces varying contrast. Alternatively the glass plate may be covered with a transparent rubber layer and a blackened surface of element 23 moved into and out of contact therewith. The members may be moved by a plurality of Ni or ferrite magnetostrictive elements with a crossed array of conductors mounted on a support or by a layer of Ni with conductors on either side. When the magneto-strictive material has some hysterisis, a memory effect is obtained. Polarized Pb Zr titanate piezo-electric material may be used. The arrangement may be used to produce bright lines in an altimeter Figs.10 to 12 (not shown) with a circular or linear scale which may comprise 256 elements connected at the effective inter-sections of two 16 line conductor arrays. An eight bit parallel-digital signal is provided to an operating circuit including two four bit decoders to select one conductor in each array. To avoid operation of non-selected elements, piezo-electric material of non-linear characteristic or an array of diodes, may be used. In another embodiment an alpha-numeric display device comprises a glass panel with successive layers of transparent, white or coloured rubber and black rubber. Strips of the black rubber are replaced by black glass moved into and out of contact with the white rubber.
Patent GB-1317321-A (GB)
Title: Polyimides
IPC: C08G73/10
Filed: 1970-04-13
Abstract: 1317321 Laminates INTERNATIONAL HARVESTER CO 13 April 1970 17360/70 Heading B5N [Also in Division C3] A polymerizable material consists essentially of a solid solution of substantially stoichiometric proportions of an aromatic diprimary amine having a primary amine basicity constant not exceeding 10<SP>-11</SP> in a benzophenone tetracarboxylic acid diester where R is alkyl or substituted alkyl. On heating in the absence of a solvent or water the solid solution may be converted to the corresponding polyamide-acid or directly to the polyimide but one stated to have a practically unlimited shelf-life. The solid solutions may be made by mixing the diamine with the molten diester until homogeneous or by reacting the corresponding dianhydride with excess esterifying agent and then adding and homogenizing the amine and removing excess esterifying agent. Specified diamines are 4,4<SP>1</SP>-diaminodiphenyl sulphone and 2,6-diaminopyridine. Solid solutions derived from specific combinations of at least two diamines which are the subject of Specification 1,317,322 are disclaimed. The solid solutions are stated to be low melting (e.g. 60‹ to 100‹C.), capable of being spray dried, and soluble in common low-boiling solvents, e.g. alcohols or ketones, and suitable for direct use by injection moulding, melt coating, film-coating or impregnation techniques. Uses.-Specified uses are: (a) Metal to metal adhesives using a mixture of the solid solution and aluminium powder knife-coated on to glass fabric as an adhesive layer; (b) Laminates of layers pre-impregnated with the solid solution; (c) Honeycomb structures from open-weave glass fabric pre-impregnated with the solid solution. The pre-impregnated fabric for all these applications may be prepared by solution-, melt- or knife-coating the fabric with the solid solution with or without additives or fillers; (d) As vehicles for ground or suspended pigments to prepare high-temperature resistant insulating coatings; and (e) Casting unpigmented films from solution or melt.
Patent GB-1319082-A (GB)
Title: Concrete pressing processes and apparatus
IPC: B28B7/00
Filed: 1970-06-08
Abstract: 1319082 Pressing concrete panels NATIONAL RESEARCH DEVELOPMENT CORP 1 June 1971 [8 June 1970] 27509/70 Heading B5A Reinforced concrete building panels are pressed in a mould comprising four walls 43 that include a movable edge former 22 that moves under frictional control during pressing, but moves freely with the expansion of the concrete after removal of the pressing force. As described, an iron edge former 22 is guided for vertical sliding by a support 10. Frictional control is supplied by a number of permanent pot magnets 44, each surrounded by a cylindrical mild steel shield, and urged against the former 22 by spring discs 54. The magnets 44 can be moved away from the former 22 by a cam 60 that urges a plate 50 and the spring discs 54 to the right. Operation.-Four mould walls 43 are positioned on filter paper and a perforated plate 40, finely and coarsely perforated plates 509, 507, a coarse grillage 505, a solid base 503 and a bottom press platen 510. The mould walls 43 are coated with a release oil, and the mould filled with a mix including Portland cement and fly ash, and levelled by vibrating. The top press platen is lowered to engage the upper edges of formers 22 and slide them down under frictional control while compressing the concrete and squeezing out water. Near the end of the pressing operation, the upper platen engages plungers 30 that rotate spurs to rotate camshafts 62 and attached cams 60, and so release the frictional control. The upper pressing platen is removed, and the formers 22 freely follow any slight concrete expansion. The cam-shafts 62 are returned manually by a detachable handle or a pneumatic wrench to re-engage the magnets 44, whereafter the moulds walls 43 are removed horizontally and the concrete panel lifted away by a vacuum pad. The formers 22 are repositioned by an hydraulic jack or lever, or manually after relieving frictional control. The magnets may be replaced by bar magnets, by switchable semi-permanent electromagnets (120) (see Fig. 5, not reproduced), by electromagnets (200) (Fig. 6, not reproduced), by switchable magnetic chucks (600) (Fig. 7, not reproduced) or by spring urged pads (100) (Fig. 2, not reproduced) of brake lining material.
Patent GB-1320904-A (GB)
Title: Cheese washing machines
IPC: A01J27/00
Filed: 1969-08-11
Abstract: 1320904 Washing cheese K GASBJERG 12 Aug 1970 [11 Aug 1969] 40106/69 Heading A2B A cheese washing machine comprises a conveyor for moving one or more rows of cheese portions past nozzles which apply high pressure water jets to at least some of the cheese surfaces and which are operated to move transversely to the cheese movement. In the embodiment shown the cheese portions are moved by rollers 4 the rollers at the entry end rotating more slowly than succeeding rollers to space the cheese portions. Nozzles 6 and 12 transversely reciprocated by double acting cylinders 10 and 14 respectively, apply water to bottom and top surfaces of the cheese portions respectively. Nozzles 18 mounted on frame 16 which reciprocates up and down, apply water to the side surfaces of the cheese portions and when adjacent spaces between the cheese portions they are moved into and out of the spaces to apply water to the end surfaces, under the action of switch means actuated by the rear and leading edges of the cheese portions. The movement of the nozzles may be controlled by cams. Nozzles 12 may be adjustable vertically and used to apply water to the cheese ends. Nozzles moving transversely and longitudinally of the conveyor may be provided to apply water to the ends. The sides of the cheese portions may be brushed.
Patent GB-1322170-A (GB)
Title: Track guided gas cushion vehicle
IPC: B60V3/04
Filed: 1969-07-29
Abstract: 1322170 Track guided gas-cushion vehicle systems TRACKED HOVERCRAFT Ltd 22 July 1970 [29 July 1969] 38127/69 Headings B7K and B7L A vehicle 1 for operating over a prepared track 2 has downwardly extending side portions 12 to embrace the track, gas gushion support means 3, at least two pairs of gas cushion guide means 5 longitudinally spaced apart on the same horizontal level, and at least one further pair of gas cushion guide means 6 on a lower level to the means 5, located at or to the rear of the centre of the vehicle with respect to the direction of travel. The guide means 6 may be vertically below rear guide means 5b (Fig. 6, not shown), and, they may be made movable from one end to the other, or may be removable and able to be installed at either end, in order that the vehicle may travel in either direction. Alternatively (Fig. 5) a further pair of guide means 6a may be located below front guide means 5a, only the means 6 located to the rear in the direction of travel being operated at any time. In further embodiments guide means 6 are located in front of (Fig. 7, not shown), or to the rear of, (Fig. 8, not shown) rear guide means 5b. Or (not shown) there may be two pairs of guide means 6 longitudinally between the means 5a and 5b, being vertically movable, so that those means 6 which are to the rear may be moved to a lower level. Alternatively (Fig. 9, and Figs. 10 and 11, not shown) more guide means may be provided, only those shown shaded being operated when the vehicle is travelling from right to left. If it is intended that the vehicle be able to travel in one direction only, the means 6 may be mounted on downwardly-extending portions 13 which act aerodynamically as fins. The guide means 5 or 6, which may be either of the peripheral jet type or the plenum chamber type, are supplied with pressurized gas via belows (19), (Fig. 3, not shown), which may contain springs and which act as a secondary suspension. Two vertically aligned guide means may be connected by a torsion bar (17).
Patent GB-1323065-A (GB)
Title: Rotary transmission devices
IPC: F15B9/14
Filed: 1969-08-26
Abstract: 1323065 Hydraulic reciprocating motors IAN NICKOLS Ltd 14 Oct 1970 [26 Aug 1969] 42374/69 Heading F1A [Also in division B3, G3]. A torque amplifier for driving a machine tool leadscrew or winch has an input shaft 1 provided with a crank disc 3 whose crank pin 5 is connected by links 12, 13 to the spools of control valves 10, 11 carried by the cylinders 8a, 9a of respective jacks 8, 9 whose piston rods 8b, 9b are anchored at X, Y. The ends of cylinders 8a, 9a are connected to the crank pin 6 of output crank disc 4 so that the latter rotates in the same direction and at the same speed as the input shaft. The latter can support a ratchet wheel engaged by a pawl of adjustable stroke to provide slow feed and fast return of the leadscrew. The jacks may alternatively be single-acting, or diaphragm motors may be used. Alternative amplifiers may use three or more rams.
Patent GB-1330155-A (GB)
Title: Semiconductor information storage devices
IPC: G11C11/404
Filed: 1970-12-17
Abstract: 1330155 Semi-conductor store FERRANTI Ltd 13 Dec 1971 [17 Dec 1970] 60331/70 Heading G4C [Also in Division H1] A semi-conductor store has a plurality of cells 10 each storing a bit, each cell comprising a bipolar transistor 11 capable of conducting in both the forward and reverse directions, the transistor having a significant current gain factor (i.e. of at least 5) in both directions, and a capacitance 12 connected to the transistor collector, there being with each cell writing means to charge the capacitance with the transistor conducting in the reverse direction and reading means to provide an output indicative of whether the capacitance is charged or not. Each cell 10 (Figs. 1 and 2, not shown) comprises a bipolar collector-diffusion isolation NPN transistor 11 having a low resistivity collector and emitter. The cells are formed in a semiconductor body and the capacitance 12 is formed between the collector and the body. When the capacitance is charged a binary 1 is stored, when it is discharged a 0 is stored, or vice versa. Refreshing of a stored 1 is necessary periodically owing to leakage currents. The cells are arranged in an 8 x 8 matrix with address lines 20, write/sense lines 21, write enable means 29, reset means 50 and readout lines 26. When a cell is addressed, the data is passed to a feedback amplifier 22 (Fig. 4, not shown) which acts as a temporary bi-stable store. The capacitance 12 is discharged when reading a 1 from the cell but the positive feedback of the amplifier causes the charge to be restored before the amplifier is reset. To write data in, the amplifier is reset, line 28 is pulsed and the capacitance 12 is charged up. The construction of the semi-conductor body is described in great detail (Figs. 6 and 7, not shown).